Crusher



C. L. CARMAN.

CRUSHER. I APPLlCATION FILED AUG. 19, I920- 1,%36,338 Patented Nov. 21,19220 3SH-EETSSHEET I- I w I 66 2 30 25 26 32 36 C. L. CARMAN.

CRUSHE'R.

APPLICATION FILED AUG. 19. 1920.

1,486,338, Patented N v. 21, 19226 3 SHEETSSHEET 2.

c. L. CARMAN.

CRUSHER. APPLICATION FILED AUG. 19, 1920.

1&36338, Pawnted Nov. 211, 19220 3 SHEETS-SHEET 3- 7 z GizarZes 321 292Patented Nov. 21, 11922.

UNETEIZ D STATES insane earner Corr ne.

enaanns a. charmer, or new roan-1r. an, assurance 'ro aos nrn a. hammer,on new roan, n. Y.

CRUSIECEE.

Y Application filed August 19, 1320. serial No. QOQOM.

To all whom it may concern:

Be it known that I,=CHARLEs L. CARMAN, a citizen of the United States,and a resident of the borough and county of Bronx, city and State of NewYork, have invented certain new and useful Improvements in Crushers, ofwhich the following is a speci-- fication.

This invention relates to crusher apparatus for crushing stone, ore orother material, and relates particularly to crushers known as gyratorycrushers, and it is the object of the invention to provide improveddriving means to impart gyratory movement to a gyratory crushing memberin this type or crusher which is novel, simple and cheap in structure,and highly efiicient in operation. r

llt is another object of the invention to provide improved driving meanssupported independently "of the gyratory crushing member orits supportand arranged to be detachably; connected or coupled to the gyratorycrusher member.

It is another object of the invention to provide in a gyratory crusherin which the gyratory crushing member is eccentrically mounted in abushing concentric with the axis of the crusher improved driving meanssupported independently of the crushing member or its bushing andadapted to be operatively connected to the bushing at one end thereofconcentrically with the axis of the crusher.

It is a still further object of the invention to provide an electricmotor drive 'for crushers of this type with the rotatable member of themotor supported independently of the gyratory crushing member andarranged with detachable means-to operatively connect the same to thegyratory crushing member.

It is still another object of the invention to provide improved drivingmeans su ported concentrically of the crusher on t a bearing support ofthe crusher independently of the gyratory crushing member or itsbearing, with means to operatively cohnect the driving means to thegyratoryucrushing member or its bearing and co-operate with the supportfor said bearing to provide an enclosed lubricant carrying housing forsaid bearing.

Other objects and advantages .will hereinafter appear,

In the drawings accompanying and forming a part of this specificationFigure 1 is a sectional side elevation of a gyratory crusher showing anembodiment of my improved driving means applied thereto.

Figure 2 is a sectional side elevation showing a modified torm'of driverand manner of connecting the driver to the gyratory crushing member.Figure 3 is a sectional detail view showing a modified method ofoperatively connectingthe driver shown in Figure 2 to the gyratorycrushing member.

Figure 4 is a perspective view, partly in section, of a bearing in whichthe gyratory crushing member is eccentrically mounted.

Figures 5 and 6 are detail views in perspective of the means shown inFigure 1 to couple the driver to the gyratory crushingmember. I

. Figure 7 is a plan view of a ring for supporting the driver upon thebearing support of the gyratory crushing member as shown in Figure 1;and

Figure 8 is a bottom view, partly in sec tion, to show the manner ofmounting the driver supporting ring.

Similar characters of reference designate like parts throughout thedifierent views of the drawings.

In the embodimentof my invention shown in the drawings the operativemechanism of the crusher is supported by a main frame or supporting base7 arranged to besupported upon a suitable'foundation. A crus ing member8 in the form of an annular shell or chamber is mounted upon the baseand is provided with segmental sections of wear resisting material 9,upon the inner face. This chamber may be of cylindrical term as shown,or as commonly made of inverted truncated cone shape. A shaft 10 isfulcrumed, at at 11, concentric with the a ris of the chamber 8 in thehub of a spider 12 mounted upon the crushin chamber, said shaft having acrushing hea or member 13 of truncated cone shape mounted thereon withthe peripheral wall thereof in opposed I material and dust from passinginto said sleeve.

A hearing supporting sleeve 18 is carried by the bottom plate 19 of thesupporting base.

7 concentric with the crushing chamber 8, which sleeve may be castintegral with said base, but to facilitate the machining and replacementof said sleeve it is preferably made separately from the bottom plate19' and secured in an opening in said bottom late to extend above andbelow the same by bolts 20 passing through a lateral flange of saidsleeve and the bottom plate. A hearing member or bushing 21 is mountedin the bearing sleeve 18 to rotate on an axis concentric with the axisof the crusher and shell or chamber 8, said bearing having a bearingface on the interior thereof eccentric to the axis of rotation of thebearing and crusher, said bearing face being of globular or socket formas shown at 22 for the engagement of a circular or ball portion 23 of abushing 24 in which the shaft 10 is loosely mounted and to have axialmovement. To facilitate the mounting of the bearing for the shaft in thebearing member 21 this bearing is made of longitudinally split sectionsre easably secured together by bolts 25 passing through opposite ribportions 26 extendin transversely of the axis of the bearing and at theend of the shaft 10. The ball and socket portions 22, 23 of thebearing-21 and bushing 24 are so arranged as to bring the line of forceof pressure of the eccentric coincident with the center of the bottomplate 19 of the supporting base 7. By this arrangement gyratory movementwill be imparted to the shaft 10 and through the shaft to the crushinghead 13 by the rotation of the bearing 21. -A dust collar 27 is alsomounted upon the shaft at the end of the bearing sleeve 18.

To rotate the eccentric bearing member 21 driving means are providedconsisting of a driver or driving unit rotatably mounted or journalledupon the bearing sleeve 18 below the bottom plate of the base 7concentric with the axis of the crushing apparatus and independently ofthe crushing member. This driver as shown in Figure 1 of the drawingscomprises an electric motor having a rotatable annular field or rotor 28and a stator 29. The rotor is carried by a s ider 30 having a centralhub portion where y it 36 is detachably is rotatably mounted orjournalled upon the bearing supporting sleeve 18 and is held againstendwisemovement by one end of the spider hub engaging a shoulder formedin the supporting flange of the bearing sleeve and a collar 31 removablymounted at the end of the bearing sleeve, said collar also serving tosupport the superimposed load of the driver and eccentric bearing. Toremovably mount the ring or collar 31 upon the bearing sleeve thebearing sleeve is arranged with an annular recess or groove 32 havingsegmental slots 33 cut thereinto from the end of the bearing sleeve, andthe collar is arranged with segmental inwardly extending pro ections 34.To apply the collar it is adjusted to register the projections 34thereon with the slots 33 to cause the collar projections to engage theannular groove or recess 32, and as said collar projections engage insaid recess the collar is rotatably adjusted to seat the collarprojections 34 upon the shoulders formed by the slots 33 cut in to saidannular recess when it is secured in such position by a set-screw or pin35.

It will be obvious that the supporting The stator 29 is fixed to thebottom plate of the supporting base 7 Within and concentric of therotor.

By the mounting of the driver as described the driver encircles thebearing sleeve and eccentric bearing and to operatively connect thedriver to the shaft 10 and ratory crushs ing member 13 at the end ofsaid shaft concentric with the axis of the crusher a plate or disk 36(Figure 5) is detachably secured to one end of the hub of the rotorcarrying spider, as by bolts, said plate serving to close one end of theopening through the spider hub and also the opening in the bearingsleeve 18 thereby providing a closed lubricant carrying chamber for thebearing.

To operatively connect the driver with the gyratory crushing member, aplate or.disk connected to the driver by bolts passing t roughperforations circumferentially d1sposed in the plate adjacent theperiphery and threaded into the driver. The 1 plate is arranged with arib 37 projecting of the disk for the slidable engagement of the obviousthat 1 have provided a driving means for the gyratory member of thecrusher which is supported independently of said member or its bearingand which is operatively connected to the gyratory crushing memberconcentric of the axis of the crusher at one end of said member, theeccentric bearing for the yratory crushing member being supported by thedriving means, and by this arrangement of mounting the driving means andconnecting the same to the gyratory crushing member that the eccentricbearing for the gyratory crushing memher may be readily removed withoutthe necessity of disturbing the. driving means. f

While I have described the driver as consisting of an electric motorthis driver may comprise a rope or belt driven pulley, as shown inFigures 2 and 3, in which case a pulley 42 is substituted for theelectric motor, and the pulley may be operatively connected to theeccentric bearing for the gyratory crushing member in the manner shownin Figure 1 through the intermediary of the plate 36 and interposedcoupling disk,

39, or directly and rigidly connected to said bearing in a manner asshown in Figure 3. For this purpose the bearing 21 is arranged below andoverlap the rotor carrying spider and secured thereto as by bolts, theopening in the bearin being closed by a plate 45 secured to the icaringflange t3 and cooperating with said flange to provide a lubricantcarrying chamber for the bearing.

In Figure 2 I have shown a modified means of connecting the eccentricbearing 21 to the driver. The driver is connected to said hearing by aplate 46 bolted to the hub of the driver similar to the connection ofthe plate 36. The plate 46 however has an inwardly projecting hub 47havinga lateral lug 48 arranged with a longitudinal slot. The bearing 21has an inwardly extending lug49 with a slot adapted to register with theslot of the hub lug 48 and in which regis tered slots akey or feather 50is adapted to engage, said key being secured in the slot of the hub lug48, as by a bolt 51, and being of less width than the depth of the slotsin the lugs 48 and 49 to provide a space between said key and the bot mof the slot in the bearing lug 49 thereby permitting of movementlaterally of the axis of the crusher to compensate for 'lwe'ar andotherwise. To facilitate machining of the slotin the lug 48 of the platehub an opening is provided I in lino with said lug and which openingwhen the plate is connectedto the driver and bearing 21 is closed by'aplate 51 to prevent leakage of lubricant from the bearing 21.

To provide'a supply of lubricant to the bearing or the chamber formed bythe plate 36 in conjunction with the supporting sleeve for said bearing,the stator of the motor shown in Figure 1 may be provided with lubricantcarrying chamber the outlet from which is at the upper end of the hub ofsaid spider, and to direct any flow of lubricant rom the upper end ofthe spider hub into the well 52 an annular deflector plate 56 isprovided at the top of the spider hub to extend over the top of theinner wall of the well; The pump 54: may be driven in a suitable manner,and as shown is driven from the rotor by a belt or cable 56 passingaround a circular hub portion 57 extending from the plate 36, and late46, and a pulley 58 connected to the riving shaft of the pump.

As shown in Figures 2 and 3 the. lubricant well is arranged in thepulley 4:2, as shown ubricant carrying chamber is from one end of thehub of the pulley, and the lubricant is led from said Well by a pipe 60to the top of the bearing sleeve 21, and the lubricant may be elevatedto the top of the bearing by inertia of the lubricant through therotation of the pulley, or a suitable pump may be interposed between theinlet and outlet of the pipe. To prevent splashing and throwing of thelubricant laterally from the well through centrifugal action an annularflange 61 is arranged at one edge of the rim of the pulley to extendtoward the axis of, the pulley.

Having thus described my invention, 1 claim:

1. In a crusher, a gyratory crushing member, a fixed bearing supportedconcentrically of the crusher in which the gyratory crushing member iseccentrically mounted, a driver rotatably supported on the bearing, anda detachable driving connection between the driver and crushing member.2

at 59, the entrance to which well from the with an annular lateralflange 4:3 to extend l of the crusher, and detachable means tooperatively connect said driver with said crushing member.

4. In a crusher, a crushing chamber, a gyratory crushing memberfulcrumed concentrically of the crushing chamber, a bearing, means tojournal the crushing member eccentrically in said bearing, a rotarydriving unit rotatably mounted independently of the crushing member, anddetachable means to operatively connect the driving unit to theeccentric bearing concentric with, the axis of the crusher.

5. In a crusher, a gyratory crushing member eccentrically-concentricallysupported with relation to the axis of the crusher, driving means forsaid crushing member supported independently thereof concentrically ofthe axis of the crusher, and a detachable connection between the drivingmeans and gyratory crushing member to permit of movement of the latterrelative to the driving means and transversely of the axis thereof.

6. In a crusher, a gyratory crushing member, driving means for saidcrushing member supported independently thereof, and an operativeconnection between the driving means and crushing member arranged topermit of movement of one relative to the other in a directiontransversely of the axis and during the rotation thereof.

7 In a crusher, a gyratory crushing member, a bearing concentrically ofthe axis of the crusher inwhich the gyratory crushing member iseccentrically mounted, a driver for said crushing member supportedindependently thereof concentric with the axis of the crusher, and anoperative connection between the bearing and driver arranged to permitof movement of the bearing relative to the driver transversely of theaxis of rotation during the rotation thereof.

8. In a crusher, a gyratory crushing mem-' her, a bearing to support thecrushing member eccentrically-concentrically of the axis of the crusher,a driver for the gyratory crushing member arranged concentrically'of thebearing, and means to operatively connect said driver to the bearingconcentrically at the end thereof.

9. In a crusher, -a gyratory crushing member supportedeccentrically-concentrically of i ,eeaees member, a bushing in whichsaid crushing member is mounted, a driver supported concentrically toand independent of the gyrator crushing member and bushing, and detacable means to operatively connect said driver with the bushing to permitof the removal of the bushing without removing the driver. 7, i

11. In a crusher, a gyratory crushing member, a bearing, a bushing inthe bearing in which the crushing member is mounted, means to rotatablysupport the bearing, a driver rotatably supported upon the bearingindependently of the bushing, and detachable means to operativelyconnect the driver with the bushing concentrically of the axis of thecrusher and support the bushing in the bearing.

12. In a crusher, a gyratory crushing member, a support in which saidcrushing member is journaled concentrically and cocentrically of theaxis of the crusher, a driver rotatably mounted on said supportconcentrically of the axis of the crusher, and detachable means tooperatively connect the driver with the gyratory crushing memberconcentrically of the axis of the crusher.

13. In a crusher, a gyratory crushing member including a shaft; abearing in which the shaft of said member is eccentrically mounted; asupport in which the bearing is rotatably mounted concentric with theaxis of the crusher; an electric motor the rotor part of which isjournaled upon the bearing support, and detachable means to operativelyconnect said rotor with the bearing concentric of the axis of thecrusher.

14. In a crusher, the combination of a crushing member, a bearing inwhich said member is mounted eccentrically-concentrically with relationto the axis of the crusher, an electric motor the rotor art of which isrotatably supported on the bearing and the stator part supported infixed position concentric of the rotor, and a detachable drivingconnection between the rotor of the motor and the crushing member.

15..In a crusher, a crushing member; a bearing in which said crushingmember is eccentricallymounted; a journal in which the bearing isrotatably mounted concentric with the axis -of the crusher; a driver forsaid crushing member rotatably mounted on said journal; and a disk fixedto the driver at the end of the journal to close said end and ,arrangedto couple the driver to the bearing for the purpose specified. Y

16.. in a crusher, the combination of a supporting framework having asleeve concentrio wlth the axis of the crusher; a crushing membermounted in said sleeve to have gyratory movement; a driver rotatablysupported upon said sleeve; and a disk fixed to the driver arranged tooperatively connect the driver to said crushing member and close the endof the sleeve for the purpose speci-' fied. V I

17.1n a crusher, the combination of the L framework having a sleeveconcentric with the axis of the crusher; a crushing member;

a bearing journaled in said sleeve in which said: crushing memberiseccentrically mounted; driving means rotatably-supported' upon saidsleeve; and means. to couple the driving means to the bearingandcooperate with the driving means to provide a lubricant carryinghousing for the bearing and s'u port for the driving means.

18. n a crusher,the combination of the framework having a sleeveconcentric with the axis of the crusher, acrushing member a bearing inthe sleeve in which. said crushing member is rotatably mounted; a driverrotatably mounted upon the sleeve; a plate fixed to the driver. arrangedto close the end of the.

sleeve; and means to couple said plate tothe bearing to rotatetherewith.

19. In a crusher, a crushing member; a-

' bearing in which the crushing member is ecdriver arranged to closeone: end of thesleeve; and means to couple said plate to the centricallymounted; a sleevein which the bearing is] journaled a driver rotatablymounted upon the sleeve; a plate fixed to the bearing, comprising .adisk interposed between the end of the bearing and plate having a slotinone face extending transversely of the axis of the bearing forthe-shdable engagement of a rib extending transversely at the end andaxially of the bearing, and

gyratory crushing member to engage. around the sleeve, said annularmember, having circumferentially disposed inwardly extending projectionsto engage longitudinal recesses and an annular groove in the sleeve andsupported upon lugs formed by the longitudinal recesses cut into theannular recess; and means to couple said driver to the bearing.

member; a bearing in which the said crushing member is mounted; a sleevein which the bearing is journalled; a driver journalled upon the sleeve;means removably mounted! upon said sleeve to support and maintam thedriver against longitudinal movement on the sleeve and means to oper-'atively connect the driver to the bearing.

22. In a crusher, a rotatable bearing, a crushing member eccentricallymounted in said bearing, a driver for said bearing supportedindependently thereof, and detachable means to operatively connect thebearing to and support the same from the driver.

23. 'In a crusher, the combination of a retatable bearing, a crushingmember eccentrically mounted in said bearing, an electric motorsupported independently of the hearing concentric with the axis of thecrusher, and means to detachably connect the motor with and support thebearing.

In a-crusher, a rotatable bearing, 'a

crushing member eccentrically mounted in sald bear ng and adapted tohavegyratory movement imparted thereto through the rotary movementof thebearing, a driver sup-' ported independent of the bearing, and adetachable driving connection betweensaid driver and the-bearingarranged to relieve the driver of the strains of the lateral thrust ofthe bearing imparted thereto through the gyratory movement of thecrushing member.

21. In a crusher, a gyratory crushing 25. In a crusher, the combinationof a sup-l porting framework includinga base plate a bearing journaledin the base plate com centric with the axis of the crusher, acrush. ingmember eccentrically mounted in said bearing, adriver rotata-blysupported con centric with the axis of the crusher and the bearing atone side of the base plate and independent of the bearing, and-meanstocou- 'ple the driver-to the bearing.

Signed at the city of New York, in the Y county ofNew York and. State ofNew York this 10th day of Au st,'1920. i CHA S L. CARMAN.

